JP2017000446A - Chair - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a chair capable of securing a sufficient space in a lower area of a rear part of a backrest, and free from giving a passer-by discomfort even when a leg of the passer-by who walks in the rear side of the backrest is brought into contact with the back face of the backrest.SOLUTION: A backrest 13 includes a support plate 24 as a strength member, and a cushion member 25 covering the outside of the support plate 24. The support plate 24 has an upward standing lower standing wall 28, an upper standing wall 29 upward standing from an off-set position above the lower standing wall 28 and in the rear side of the lower standing wall 28, and a connection wall 30 connecting the top edge of the lower standing wall 28 and the bottom edge of the upper standing wall 29. The cushion member 25 has an undersurface covering part 25d covering the undersurface of the connection wall 30, leaving a recessed space in the front lower side of the upper standing wall 29 in a side view.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a chair used in a theater or a lecture hall.

  As a chair of this type, the backrest that supports the back of the seated person includes a support plate that is a strength member, and a cushion member that covers the outside of the support plate, and the main portion of the support plate and the cushion member are skin materials (For example, see Patent Documents 1 and 2).

Japanese Patent No. 2912568 Japanese Patent No. 345796

  By the way, in theaters and auditoriums, a large number of chairs need to be placed in a limited space on the floor surface. A plurality of rows are also arranged in the front-rear direction. In this case, it is desirable to reduce the separation width of the chairs arranged in the front and rear directions as much as possible from the viewpoint of space efficiency. Becomes difficult to move. In particular, when passing by a front of a chair on which a seated person is already seated, it is difficult for the passer-by to go up because he / she has to raise his / her foot. For this reason, even if it is a space on a limited floor surface, it is desired to secure a sufficient passage space behind the backrest.

  Also, in theaters and auditoriums, it is difficult to secure a space for placing items such as baggage under the seat of a chair, so articles are often placed on the floor in front of the seat. However, when the backrest of the front seat is disposed close to the front of the seat, the article interferes with the backrest of the front seat even if the article is placed on the floor surface in front of the seat.

As these measures, it is conceivable to offset the lower region of the backrest to the front side compared to the upper region, and thereby secure a walking space for a passerby and a space for placing articles on the rear side of the backrest. . In this case, the backrest support plate needs to have a shape in which the lower standing wall (lower region) is offset forward from the upper standing wall (upper region).
However, if the lower standing wall is offset from the front side of the upper standing wall on the backrest support plate, the lower surface of the connecting wall connecting the lower standing wall and the upper standing wall is located behind the backrest. It will be positioned so as to face the leg (knee and thigh) of the passerby. For this reason, there is a concern that the leg portion of the passerby who tries to pass through the back of the backrest abuts on the lower surface and the corner portion of the connection wall and gives discomfort to both the passer and the seated person. In addition, when there is a seated person in the back seat as seen from the passerby, the passerby has to raise his / her foot, so that such a problem is more likely to occur.

  Therefore, the present invention can secure a sufficient space in the lower region of the back part of the backrest, and also gives a sense of discomfort to the passerby even if the leg part of the passerby walking behind the backrest comes into contact with the back surface of the backrest. It is intended to provide a chair that never happens.

The chair according to the present invention employs the following configuration in order to solve the above problems.
In the chair according to the present invention, the backrest that supports the back of the seated person includes a support plate that is a strength member, and a cushion member that covers the outside of the support plate, and the support plate stands upward. A lower standing wall, an upper standing wall that rises upward from a position that is above the lower standing wall and that is offset to the rear of the lower standing wall, an upper end of the lower standing wall, and the A connecting wall that connects a lower end of the upper upright wall, and the cushion member has a lower surface covering portion that covers a lower surface of the connecting wall leaving a concave space in front lower side of the upper upright wall in a side view. It is characterized by that.

  With the above configuration, the lower standing wall is disposed below the upper standing wall of the backrest support plate, offset to the front side with respect to the upper standing wall, and below the lower surface covering portion that covers the lower side of the connection wall. Thus, a concave space is secured. For this reason, it becomes possible to ensure a sufficient walking space for a passerby and a space for placing articles in the rear lower region of the backrest. In addition, since the lower surface of the connection wall of the support plate is covered with the lower surface covering portion of the cushion member, even if the leg of a passerby walking behind the backrest may come into contact with the vicinity of the connection wall, The contact impact is buffered by the lower surface covering portion of the cushion member. For this reason, it is difficult to give discomfort to passers-by, and it is difficult for impact to be transmitted to the seated person. In addition, the backrest support plate is formed by bending or bending in multiple stages forward and backward across the connection wall, so that the rigidity of the support plate is enhanced. Therefore, sufficient rigidity of the support plate can be ensured without increasing the thickness of the support plate.

The lower standing wall of the support plate may be inclined forward from the upper side to the lower side.
In this case, the space in front of the feet of the rear seat can be expanded.

A rear surface side of the lower standing wall of the support plate may be covered with a protective member.
In this case, the legs of a pedestrian walking behind the toes of the seated person in the back seat or the backrest do not directly contact the lower standing wall. For this reason, it can be avoided that the feet of the seated occupant of the rear seat and the legs of the pedestrian directly contact the lower standing wall and the contact impact is transmitted to the seated person.

The support plate is supported by a pedestal installed on a floor surface, and the cushion member includes a front surface covering portion that covers a front surface side of the support plate, and an upper side of the lower standing wall of the support plate. A side covering portion disposed on both sides to connect the front covering portion and the lower covering portion, and a lower surface of each side covering portion is supported on a support surface of the pedestal. You may do it.
In this case, the lower surface covering portion that covers the lower surface of the connection wall of the support plate is connected to the front surface covering portion of the cushion member that covers the front surface side of the support plate via the left and right side covering portions, so the lower surface covering portion is the support plate. Is held stably. In addition, since the lower surfaces of the left and right side covering portions are supported on the support surfaces of the pedestal columns, the lower surface covering portions connected to the left and right side covering portions are stably held by the pedestal columns. . Therefore, by adopting this configuration, it is possible to prevent the displacement of the lower surface covering portion.

The support plate may be supported by a pedestal installed on a floor surface, and an inclined surface substantially parallel to the lower standing wall of the support plate may be provided on the rear surface of the pedestal.
In this case, since the inclined surface of the rear surface of the pedestal is substantially parallel to the inclined lower wall of the support plate, the foot space of the rear seat behind the pedestal can be increased.

  According to the present invention, the lower standing wall is disposed below the upper standing wall of the backrest support plate, offset to the front side with respect to the upper standing wall, and the upper end of the lower standing wall and the lower end of the upper standing wall. The lower surface of the connecting wall that connects the two is covered with the lower surface covering portion of the cushion member so that a concave space is secured below the front side of the upper standing wall in a side view. Therefore, it is possible to secure a sufficient space in the lower region of the back part of the backrest, and to passers-by and seated persons when the legs of passers-by walking behind the backrest come into contact with the back of the backrest. An unpleasant feeling can be prevented.

It is a perspective view of the chair concerning one embodiment of this invention. It is a perspective view of the chair concerning one embodiment of this invention. It is a side view of the chair concerning one embodiment of this invention. It is a disassembled perspective view of the chair which concerns on one Embodiment of this invention. It is sectional drawing of the backrest of the chair which concerns on one Embodiment of this invention.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
The chair 10 according to this embodiment is a chair installed in a theater, a lecture hall, or the like. In the following description, the front, rear, left and right, and upper and lower designations mean directions that coincide with the orientation centered on the seated person when the seated person is seated in a normal posture unless otherwise specified. .

FIG. 1 is a view of a chair 10 (connecting chair 1) according to this embodiment as viewed from the upper front diagonally right, and FIG. 2 is a view of the chair 10 (connected chair 1) as viewed from an upper rear diagonally right. is there.
The chair 10 according to this embodiment is configured as a connected chair 1 in which three chairs 10 are connected side by side and integrally. A predetermined number of connecting chairs 1 are installed in a horizontal row on the floor F of the facility. A plurality of side-by-side rows of the connecting chairs 1 are installed on the floor F at a predetermined distance in the front-rear direction. And the space which a passer-by can pass between the front and back connection chairs 1 is secured.

The connecting chair 1 is attached to a plurality of (four) leg columns 11 fixedly installed on the floor surface F (installation section) at a predetermined interval in the left-right direction, and the adjacent leg columns 11 and attached to the seated person. A plurality of (three) seats 12 that support the buttocks, and a plurality of (three) backrests 13 that are attached to the adjacent pedestals 11 and support the back of the seated person. In the connecting chair 1, three single chairs 10 each having a seat 12 and a backrest 13 are formed between adjacent pillars 11.
In this embodiment, the three chairs 10 are connected side by side and integrally to form the connecting chair 1, but the number of the chairs 10 connected side by side and integrally is not limited to three and is arbitrary.

FIG. 3 is a view of the chair 10 (connection chair 1) as viewed from the left side, and FIG. 4 is a view of the connection chair 1 obtained by disassembling one chair 10 as viewed from diagonally upward on the front right side.
The pedestals 11 arranged on both sides of each chair 10 are a main column 14 having a substantially rectangular cross section whose lower end is fixed to the floor surface F by an anchor bolt or the like, and a side wall attached to the side surface of the main column 14 by bolt fastening or the like. The board 15 and the substantially L-shaped armrest member 16 attached along the upper side and front side of the side wall board 15 are provided. A joining flange 17 for fastening and fixing the backrest 13 is integrally formed on the rear side of the side wall plate 15. The joining flange 17 is bent in the direction facing each other between the side wall plates 15 constituting each chair 10. Further, a support block 18 for supporting the seat 12 is attached to a side surface of the side wall plate 15 closer to the front lower side. In addition, in FIG. 4, although illustration is abbreviate | omitted, the side part of the side wall board 15 is covered with the decorative board.

The seat 12 includes a seat main body 20 whose outer side of a skeleton member (not shown) is covered with a cushion member 19, and a skin material 21 that covers the outer side of the seat main body 20. The seat body 20 incorporates a turning mechanism 23 having a turning shaft (not shown) connected to the skeleton member and a pair of holding cylinders 22 that rotatably support both ends of the turning shaft. . The left and right holding cylinders 22 of the rotation mechanism 23 are coupled to the support block 18 of the side wall plate 15 so as not to rotate. Thus, the seat 12 is supported by the left and right side wall plates 15 (leg posts 11) so as to be able to flip up and turn. Further, the seat 12 is tilted substantially horizontally forward when in use, and is flipped up rearward by the force of a return spring (not shown) when not in use.
As shown in FIG. 4, a decorative board 31 that covers the outer side of the main body column 14 and the side wall plate 15 is attached to the main body column 14 that is disposed at the end in the left-right direction of the connecting chair 1.

FIG. 5 is a view showing a longitudinal section of the backrest 13 of the chair 10.
4 and 5, the backrest 13 includes a support plate 24 that is a strength member made of plywood, a cushion member 25 made of urethane resin or the like that covers the outside of the support plate 24, and main parts of the support plate 24. And a covering material 27 (protective member) made of a resin plate or a plywood attached to the rear surface of the lower region of the support plate 24.
The support plate 24 is not limited to wood such as plywood, but can be formed of other materials such as synthetic resin.

  The support plate 24 includes a lower standing wall 28 that rises upward, and an upper standing wall that rises upward from a position above the lower standing wall 28 and offset to the rear of the lower standing wall 28. 29, and a connection wall 30 that connects the upper end of the lower upright wall 28 and the lower end of the upper upright wall 29. In the case of this embodiment, the lower standing wall 28 and the upper standing wall 29 are inclined at a predetermined angle from the lower side to the upper side and backward (from the upper side to the lower side).

  As shown in FIGS. 3 and 5, in the support plate 24 of this embodiment, the inclination angle of the connection wall 30 gradually changes with respect to the lower standing wall 28 and the upper standing wall 29. However, as indicated by a virtual line 30 </ b> A in FIG. 3, the connection wall 24 may have a shape in which the inclination angle changes greatly with respect to the lower standing wall 28 and the upper standing wall 29. In this case, the rigidity of the backrest 13 in the vicinity of the connection portion 30A can be increased, and the support stability of the back of the seated person can be increased.

  The connection wall 30 is inclined with a predetermined obtuse inclination with respect to the lower standing wall 28 and the upper standing wall 29. In this embodiment, the support plate 24 is formed in a substantially rectangular shape. The rear surface side of the left and right side edges of the lower standing wall 28 is overlapped with each joint flange 17 of the left and right side wall plates 15, and the support plate 24 is fixed to each joint flange 17 by bolt fastening or the like. In this embodiment, the rear surface 17a of the joining flange 17 constitutes the rear surface of the pedestal 11, but the rear surface 17a of the joining flange 17 constitutes an inclined surface substantially parallel to the lower standing wall 28.

The cushion member 25 includes a front covering portion 25 a that covers the entire front surface of the support plate 24 (the front surfaces of the lower standing wall 28, the connection wall 30, and the upper standing wall 29), and the rear surface of the upper standing wall 29 of the support plate 24. A covered rear covering portion 25b, a pair of side covering portions 25c that respectively cover the left and right side surfaces of the connection wall 30 and the upper standing wall 29 of the support plate 24, and a lower surface covering portion 25d that covers the lower surface of the connection wall 30; have.
The front covering portion 25a that covers the front surface of the support plate 24 is a portion that directly receives the load on the back of the seated person, so that the whole is formed thick. Further, the left and right side edge portions of the front covering portion 25a are formed thicker than the central region in the width direction in order to hold the left and right side portions near the waist of the seated person. .

  The rear covering portion 25b covering the rear surface of the upper standing wall 29 and the lower surface covering portion 25d covering the lower surface of the connection wall 30 are formed continuously in the vertical direction. The rear covering portion 25b is formed to have a relatively thin and substantially constant thickness. The thickness of the lower surface covering portion 25d is gradually increased from the connecting portion with the rear covering portion 25b toward the lower end so that the rear surface and the rear surface of the rear covering portion 25b are flush with each other. The lower surface covering portion 25d covers the lower surface of the connection wall 30 leaving a concave space S in the lower front side of the upper standing wall 29 in a side view. In the case of this embodiment, the lower surface of the lower surface covering portion 25 d has substantially the same height as the front end portion of the connection wall 30. For this reason, the cross-sectional shape of the lower surface covering portion 25d in the direction orthogonal to the left-right direction is a substantially right triangle shape whose rear lower end is substantially perpendicular. Therefore, the corner portion at the lower end of the rear portion of the lower surface covering portion 25d has the maximum thickness in both the upper and lower directions and the front and rear directions.

The left and right side covering portions 25c are connected to the left and right side portions of the front covering portion 25a at the front side and to the left and right side portions of the rear covering portion 25b and the lower surface covering portion 25d at the rear side. Has been. The left and right side cover portions 25c bulge out by a thickness from the side end portions on both sides of the front cover portion 25a having a substantially constant width toward the side. In the case of this embodiment, the front covering portion 19a and the rear covering portion 25c are also connected to each other at the upper end portions.
The cushion member 25 is attached to the outer surface of the support plate 24 so as to cover almost the entire area except the rear surface of the lower standing wall 28.

The skin material 26 covers the entire region outside the cushion member 25 attached to the support plate 24, and the terminal portion is fixed to the outer edge portion of the rear surface of the lower standing wall 28 by appropriate means. Then, the end portion of the skin material 26 fixed to the lower standing wall 28 is covered with a cover plate 27 fastened and fixed to the rear surface of the lower standing wall 28.
The left and right side edge portions of the cover plate 27 are also fastened and fixed to the joint flanges 17 of the left and right side wall plates 15.

  Here, the backrest 13 is fixed to the left and right pedestals 11 by fastening the lower standing wall 28 of the support plate 24 together with the cover plate 27 to the rear part of the left and right side wall plates 15 as described above. At this time, the lower surfaces of the left and right side cover portions 25c of the cushion member 25 are supported in pressure contact with the upper surfaces of the left and right armrest members 16 (support surfaces of the leg posts 11).

  As described above, in the chair 10 according to this embodiment, the lower standing wall 28 is disposed below the upper standing wall 29 of the support plate 24 of the backrest 13 and offset to the front side with respect to the upper standing wall 29. The upper end portion of the lower standing wall 28 and the lower end portion of the upper standing wall 29 are connected by the connection wall 30, and the lower surface of the connection portion 30 is a concave space S below the front standing wall 29 in the side view. Is covered by the lower surface covering portion 25d of the cushion member 25. For this reason, a large space S in which a passerby can walk and place articles can be secured in the rear lower region of the backrest 13.

Further, in the chair 10 according to this embodiment, since the lower surface of the connection wall 30 of the support plate 24 is covered with the lower surface covering portion 25d of the cushion member 25, the knees and thighs of passers-by who walk behind the backrest 13 are used. Even if it contacts the vicinity of the connection wall 30, the contact impact can be buffered by the lower surface covering portion 19d of the cushion member 25.
Therefore, when the chair 10 according to this embodiment is adopted, a large space S in which a passer-by can walk and place articles can be secured in the lower region of the rear portion of the backrest 13 and the backrest can be secured. Even if the knees and thighs of a passerby walking behind 13 may come into contact with the back surface of the backrest 13, it is possible to prevent the passerby and the seated person from feeling uncomfortable.

  Further, in the chair 10 according to this embodiment, the support plate 24 of the backrest 13 is formed by bending or bending in multiple stages forward and backward with the connection wall 30 in between, so that the thickness of the support plate 24 is not increased. The rigidity can be increased efficiently.

  Further, in the chair 10 according to this embodiment, the lower standing wall 28 of the support plate 24 is inclined forward from the upper side to the lower side. For this reason, the front of the foot of the seated person seated on the rear seat can be advantageously enlarged.

In particular, in the chair 10 according to this embodiment, the rear surface 17a of the joining flange 17 that forms the rear surface of the pedestal 11 is an inclined surface substantially parallel to the lower standing wall 28 of the support plate 24.
The foot space of the rear seat behind the pedestal 11 can be similarly advantageously increased.

  Further, in the case of the chair 10 according to this embodiment, the rear surface of the lower standing wall 28 of the support plate 24 is covered with the covering plate 27, so that the feet of the seated person in the rear seat and the back of the backrest 13 are covered. A leg part (knee or thigh) of a walking pedestrian does not directly contact the lower standing wall 28. Therefore, by adopting this structure, the abutment impact is greatly transmitted to the seat occupant when the foot of the seat occupant of the rear seat and the leg of the pedestrian directly contact the lower standing wall 28. It can be avoided.

  Furthermore, in the chair 10 according to this embodiment, the cushion member 25 that covers the outside of the support plate 24 includes a front cover portion 25 a that covers the front side of the support plate 24, and a lower surface that covers the lower surface of the connection wall 30 of the support plate 24. 25 d of covering parts, and the side covering part 25c which is arrange | positioned in the both sides above the lower standing wall 28 of the support plate 24, and connects the front side covering part 25a and the lower surface covering part 25d, The lower surface of the side covering portion 25c is supported by the upper surface of the armrest member 16 (the support surface of the pedestal 11). Therefore, the lower surface covering portion 25d of the cushion member 25 can be stably held on the support plate 24 via the left and right side covering portions 25c and the front side covering portion 25a, and the lower surface covering portion 25d can be The left and right pedestals 11 can be stably held through the lower surface of the side covering portion 25c. For this reason, even if a large load may be input to the lower surface covering portion 25d, the position shift of the lower surface covering portion 25d can be prevented.

  In addition, this invention is not limited to said embodiment, A various design change is possible in the range which does not deviate from the summary. For example, in the above-described embodiment, the plurality of chairs 10 are connected side by side to form the connection chair 1, but each chair may be a single chair that is not connected to each other.

Further, in the above embodiment, the rear cover portion 25b covering the rear surface of the upper standing wall 28 is continuously formed on the upper surface of the lower surface cover portion 25d that covers the lower surface of the connection wall 30 of the support plate 24. The rear covering portion 25b is not necessarily provided.
Further, the covering plate 27 covering the rear surface of the lower standing wall 28 of the support plate 24 is provided with a hanging member such as a hook so as to further improve the storing property of the article in the space S below the backrest 13. You may do it.
Further, the support plate 24 may be formed with slits, recesses, notches or the like to such an extent that the strength is not impaired, and the seating feeling when leaning against the backrest 13 may be changed.

10 Chair 11 Pillar 13 Backrest 24 Support Plate 25 Cushion Member 25a Rear Surface (Inclined Surface)
25a Front covering part 25c Side covering part 25d Lower surface covering part 27 Cover plate (protective member)
28 Lower Standing Wall 29 Upper Standing Wall 30 Connection Wall

Claims (5)

The backrest that supports the back of the seated person
A support plate that is a strength member;
A cushion member covering the outside of the support plate,
The support plate is
A lower standing wall that rises upward;
An upper standing wall that stands upward from a position that is above the lower standing wall and that is offset behind the lower standing wall;
A connection wall connecting the upper end of the lower standing wall and the lower end of the upper standing wall;
The cushion member has a lower surface covering portion that covers a lower surface of the connection wall while leaving a concave space below the front side of the upper standing wall in a side view.   The chair according to claim 1, wherein the lower standing wall of the support plate is inclined forward from above to below.   The chair according to claim 1 or 2, wherein a rear surface side of the lower standing wall of the support plate is covered with a protective member. The support plate is supported by a pedestal installed on the floor surface,
The cushion member is
A front cover covering the front side of the support plate;
A side covering portion that is disposed on both sides of the support plate above the lower standing wall and connects the front surface covering portion and the lower surface covering portion; and
The lower surface of each said side coating | coated part is supported on the support surface of the said pedestal, The chair of any one of Claims 1-3 characterized by the above-mentioned. The support plate is supported by a pedestal installed on the floor surface,
The chair according to claim 2, wherein an inclined surface substantially parallel to the lower standing wall of the support plate is provided on a rear surface of the pedestal.

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